COUNTERBALANCE VALVE
105
Pressure Controls
55T SERIES
COUNTERBALANCE VALVE
CARTRIDGE •
T SERIES CAVITY, INT. VENTED
Description
A CARTRIDGE STYLE, THREE PORT, PILOT TO OPEN COUNTERBALANCE VALVE WITH AN INTERNALLY VENTED SPRING CHAMBER AND FREE REVERSE FLOW CHECK, INTENDED FOR MOTION CONTROL AND OVER-CENTER LOAD HOLDING APPLICATIONS.
Product Rendering
Schematic
Typical Performance
Operation
- BACK PRESSURE AT PORT (2) IS ADDITIVE TO RELIEF SETTING.
- FLOW FROM (1) TO (2) IS BLOCKED UNTIL THE RELIEF PRESSURE SETTING HAS BEEN EXCEEDED.
- FLOW FROM (1) TO (2) IS BLOCKED UNTIL A PILOT PRESSURE INVERSELY PROPORTIONAL TO THE LOAD PRESSURE IS APPLIED TO THE PILOT PORT.
- FLOW FROM (2) TO (1) IS ALLOWED WITH A STANDARD CRACK PRESSURE OF 25 PSI.
Features
- PILOT RATIOS UP TO 10:1 AVAILABLE (HIGHER PILOT RATIOS MAY REDUCE FLOW CAPACITY)
- LOW RELIEF HYSTERESIS.
- QUIET, STABLE OPERATION.
- SEALED PILOT PISTON, LOW INTERNAL LEAKAGE.
- ADJUSTABLE WITH LOCKING NUT.
- CLOCKWISE ADJUSTMENT TO INCREASE RELIEF SETTING.
- THE 55T17 IS LIMITED TO A 4000 PSI SETTING
Specifications
| INTERNAL LEAKAGE |
5 DROPS/MIN. MAX. |
| OPERATING PRESSURE |
5000 PSI |
| RELIEF SETTING RANGE |
500 - 5000 PSI |
| RELIEF TOLERANCE |
+/- 10% |
| STANDARD CRACK PRESSURE |
25 PSI |
| TEMPERATURE RANGE |
250°F TO -40°F |
Ordering Information
| 55T163 | M16 X 1.5 | 5.0 GPM | T-163A | 1.22 | 1.80 | 0.750 | 0.512 /
0.513 | 0.653 /
0.654 | 0.700 /
0.701 | 0.650 | 20 ft-lbs |
55T11 | M20 X 1.5 | 15.0 GPM | T-11A | 1.38 | 2.25 | 0.938 | 0.683 /
0.685 | 0.807 /
0.809 | 0.855 /
0.857 | 0.850 | 30 ft-lbs | 55T2 | 1-14 | 25.0 GPM | T-2A | 1.38 | 2.50 | 1.125 | 0.871 /
0.873 | 1.027 /
1.029 | 1.074 /
1.076 | 0.870 | 45 ft-lbs | 55T17 | M36 X 2.0 | 60.0 GPM | T-17A | 1.81 | 4.50 | 1.625 | 1.246 /
1.247 | 1.433 /
1.435 | 1.558 /
1.559 | 1.18 | 95 ft-lbs |
55T163View More
M16 X 1.5
5.0 GPM
T-163A
1.22
1.80
0.750
0.512 / 0.513
0.653 / 0.654
0.700 / 0.701
0.650
20 ft-lbs
55T11View More
M20 X 1.5
15.0 GPM
T-11A
1.38
2.25
0.938
0.683 / 0.685
0.807 / 0.809
0.855 / 0.857
0.850
30 ft-lbs
55T2View More
1-14
25.0 GPM
T-2A
1.38
2.50
1.125
0.871 / 0.873
1.027 / 1.029
1.074 / 1.076
0.870
45 ft-lbs
55T17View More
M36 X 2.0
60.0 GPM
T-17A
1.81
4.50
1.625
1.246 / 1.247
1.433 / 1.435
1.558 / 1.559
1.18
95 ft-lbs
Page last updated: 5/23/23, 3:27 PM
This document, as well as all catalogs, price lists and information provided by Vonberg Valve, Inc., is intended to provide product information for further consideration by users having substantial technical expertise due to the variety of operating conditions and applications for these valves, the user, through its own analysis, testing and evaluation, is solely responsible for making the final selection of the products and ensuring that all safety, warning and performance requirements of the application or use are met.
The valves described herein, including without limitation, all component features, specifications, designs, pricing and availability, are subject to change at any time at the sole discretion of vonberg valve, inc. without prior notification.
